<p>The following list contains properties exposed by the paper object:</p>

<ul>
    <li><code>svg</code> - a reference to the SVG document object the paper uses to render all the graphics.</li>
    <li><code>layers</code> - a reference to the SVG group  <code data-lang="svg">&lt;g&gt;</code> element that contains all the layers of the paper. Paper transformations such as scale is performed on this element and it affects all the layers inside.</li>
    <li><code>cells</code> (cells layer) - a reference to the SVG group <code data-lang="svg">&lt;g&gt;</code> element the paper wraps all the rendered elements and links into.</li>
    <li><code>tools</code> (tools layer) - a reference to the SVG group  <code data-lang="svg">&lt;g&gt;</code> element the paper wraps all the rendered tools into.</li>
    <li><code>defs</code> - a reference to the <a href="https://developer.mozilla.org/en-US/docs/Web/SVG/Element/defs">SVG &lt;defs&gt; element</a> used to define SVG elements for later reuse. This is also a good place to put SVG masks, patterns, filters and gradients.</li>
</ul>

<p>Normally, you do not need to access these properties directly but in some (advanced) situations, it is handy to have access to them.</p>
